Diptera of St. Vincent (West Indies), 357 



compressed. Wings brownish, deeper along the veins, hyaline on 

 the posterior margin, first posterior cell closed and rather long 

 petiolate, terminating in the margin a little distance before the tip ; 

 costa with spine ; third vein bristly before the cross-vein, the first 

 vein bare. 



Southern end of the island. May. Open ground^ 

 near sea^ on herbage. Six females and two males. 



2. Atrophopoda hrauerij n. sp. (PL XI., figs. 94, head 

 of $ ; 94a, tarsus of ? ; 946, tarsus of $ ; 94c, wing.) 



^ , $ . Frontal bristles descending to the border of the eyes ; 

 eyes very sparsely hairy ; arista pubescent in the female ; costa 

 with spine ; first posterior cell narrowly open at the tip ; all the 

 claws and pulvilli of male much elongated. Length 5-6 mm. 



Face a little less receding than in A. townsendii, narrower, and the 

 front of more equal width. Third joint of antennae not more than 

 four times the length of the second joint. Sides of front light- 

 yeflow pollinose. Face silvery-white ; median frontal stripe black. 

 Antennae deep brown or black ; the second joint red ; arista in the 

 male bare, or almost imperceptibly pubescent ; in the female 

 distinctly pubescent. Thorax silvery-grey, with two broad, deep 

 brown or black stripes extending the full length of the mesonotum. 

 Abdomen long-ovate, shining black, the anterior portion of 

 segments two, three, and four silvery-grey ; first segment with 

 lateral, but no median bristles ; second segment with lateral and a 

 pair of marginal bristles ; third and fourth segments with a 

 posterior row. Legs black ; all the claws and pulvilli of the male 

 much elongated ; those of the four posterior feet of the female 

 small, on the front feet rudimentary, and their terminal tarsal 

 joints compressed. Wings nearly uniformly brownish or sub- 

 hyaline ; first vein with hairs throughout ; third vein with hairs 

 as far as the small cross- vein : first posterior cell terminating near 

 the tip of the wing, narrowly open, its angle obtuse and without 

 stump. 



Twenty specimens. 



It will be seen from the generic synonymy given above 

 that I take a different view of the A'^alue of the characters in 

 this genus, from that of Messrs. Townsend, Bergenstamm, 

 and Brauer. 1 am opposed to the principle that a genus 

 is necessary for every described species in this family, 

 and refrain from here adding two more for the preceding 



